Prodosh, No problem! The OpenStack architecture diagram is priceless. I think spending the time to understand how the interconnections work can take longer than reading a CloudStack reference architecture & completing an in-house Apache CloudStack PoC :)
To quote Chris Swenson in the datamation link below: "We did a proof of concept with OpenStack, but after spending a couple of weeks with it, we just felt like it wasn't enterprise ready," Swenson said. He pointed out that the POC was conducted a year ago, and that OpenStack is evolving constantly. However, he also said that using CloudStack is like turning to a contractor to build your house, whereas using OpenStack is like walking into Home Depot and figuring everything out on your own." Best, Kelly On 6/24/13 7:12 AM, "Prodosh Banerjee" <[email protected]> wrote: >Thanks Kelly - that was very useful. > >I ended up using the following links along with some additional text: > >- "CloudStack vs. OpenStack": >http://www.cloudops.com/2013/06/cloudstack-vs-openstack-a-personal-experie >nce/ > >- "Is CloudStack more enterprise ready than OpenStack": >http://www.datamation.com/cloud-computing/is-cloudstack-more-enterprise-re >ady-than-openstack-1.html > >- "CloudStack Overview": >http://www.slideshare.net/gavin_lee/cloud-stack-overview > >- OpenStack architecture diagram: >http://vmartinezdelacruz.com/wp-content/uploads/2013/01/openstack-logical- >arch-folsom.png > >On 21.06.2013, at 18:45, Kelly Hair <[email protected]> wrote: > >> Prodosh, >> >> >> High level comparison of CloudStack vs. OpenStack: >> >> * Product vs. project focus >> * Simplicity vs. Complexity >> * Scalable vs. non-scalable >> * Enterprise & "Amazon style" vs. "Amazon style" workload support >> * AWS compatibility vs. OpenStack specific API >> * Maturity of CloudStack vs. OpenStack >> >> Product vs. project focus >> >> >> CloudStack is an integrated product complete with a working portal and >> multiple APIs (CloudStack API or AWS EC2). OpenStack is a promising set >> of projects (think there's 15 now but I may be corrected). >> >> >> Simplicity vs. Complexity >> >> >> See: >> >>http://vmartinezdelacruz.com/wp-content/uploads/2013/01/openstack-logical >>-a >> rch-folsom.png A picture is worth a thousand words :) Anyhow, this >> translates to longer POCs and longer integration cycles, so while that's >> great for integrators, it's not so wonderful for the end customer. >> >> Scalable vs. non-scalable >> >> >> I may need to be updated on this but I think OpenStack's Nova can only >> support ~ 500 physical hosts. This may have increased in Grizzly but >>not >> sure. Anyhow, Apache CloudStack (ACS) can scale ~ 5K hosts per >>management >> server. In addition, ACS is horizontally scalable so just keep adding >>as >> you need to and load balance the Management servers. >> >> Two workloads >> >> Apache CloudStack can support not only the newer "Amazon style" >> architectures but also traditional architectures generally deployed on >> VMware vSphere. OpenStack is focused on the "Amazon style" only. >> >> AWS EC2 Compatibility >> >> Both Apache CloudStack & Eucalyptus have emphasized AWS EC2 API >>fidelity. >> One can use either the CloudStack API or EC2 API so there's a choice. >> OpenStack has its own API that's different. Some of that may be >> historical as Rackspace is competing with AWS. However, there has not >> been an emphasis in the OpenStack community to support EC2. We all >>know >> Amazon is the 800lb gorilla! >> >> Maturity >> >> OpenStack is making excellent strides in this department but maturity >> happens over years. Apache CloudStack has a history that dates back to >> 2008 when a startup called VMOps set out to provide software for >>companies >> to build their own Amazon like clouds. VMOps bought the name >>cloud.com, >> and then in 2011, Citrix bought cloud.com. Over the years, the product >> matured and Citrix alone has over 150 paying customers that have used >>the >> software to build IaaS clouds. In 2012, the software was donated to >>the >> Apache Software Foundation & it graduated in March 2013 as a full >>fledged, >> top level project. >> >> Again, OpenStack has a number of big name vendors spending a massive >> amount of money to promote it. The difference with CloudStack is that >>it >> is much more of a member/user driven community rather. >> >> Extra Bonus: >> >> I'd suggest reading this article as well: >> >>http://www.datamation.com/cloud-computing/is-cloudstack-more-enterprise-r >>ea >> dy-than-openstack-1.html Both Chris & Ilya from WebMD frequent the >> mailing lists. >> >> Hope this helps! >> >> Best, >> Kelly >> >> >> >> >> >> >> >> On 6/21/13 12:20 PM, "Prodosh Banerjee" <[email protected]> wrote: >> >>> Hi, >>> >>> A potential client is looking for a comparison between CloudStack and >>> OpenStack. So far, I came up with the following: >>> >>> >>>http://www.cloudops.com/2013/06/cloudstack-vs-openstack-a-personal-exper >>>ie >>> nce/ >>> >>> I was wondering if you had any more or better suggestions? >>> >>> This is useful information for all of us who are trying to sell >>> CloudStack based solutions and it might be useful to have a package of >>> such information in circulation for all of us to use. >>> >>> Thanks in advance and best regards >>> Prodosh >>> >>> Prodosh Banerjee >>> Managing Partner, Anolim GmbH >>> >>> Tel: +41 43 541 5704 >>> Email: [email protected] >>> Web: http://anolim.com >>> Skype: p.banerjee >>> >>> Alte Landstrasse 64 >>> 8800 Thalwil >>> >> >
